I have two sets; you can take this away.
我有两套,你可以拿走这套。
OK, so I didn't put it all together because then you would have two sets of vertical bars. See, this is a vertical bar for absolute value. This is vertical bar for determinant.
我之所以没有把这些放在一起,是因为接下来你们将会得到,两个竖着的表达式,这个是绝对值,而这个是行列式。
I said there were two types of sets of sentences that you have distinguish from an argument.
我说几组句子有两种类型,你们要和论点区分开。
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